Immanuel, S., Mandey, N. M. A. and Makmun, L. H. (2015) “ST2 Levels Before and After Treatment of NYHA III and IV Heart Failure”, Acta Medica Indonesiana, 47(4). Available at: http://actamedindones.org/index.php/ijim/article/view/22 (Accessed: 22December2025).